Find IP IPv4 Network/Subnet and its host address ranges

What is an IPv4 IP address its network and host address ranges?

An IPv4 IP address is an address used in order to uniquely identify a device on an IP network. The address is made up of 32 binary bits, which can be divisible into a network portion and host portion with the help of a subnet mask. The 32 binary bits are broken into four octets (1 octet = 8 bits). Each octet is converted to decimal and separated by a period (dot).

How to Subnet IPv4? Its simple answer is that subnetting is the process of taking a network and splitting it into smaller networks, known as subnets. It's used to free up more public IPv4 addresses and segment networks for security and easier management.
Following are the ranges of IPv4 subnet/network address and their host addresses.

IPv4 AddressIPv6 Address
205.38.139.1 0:0:0:0:0:ffff:cd26:8b01
205.38.139.2 0:0:0:0:0:ffff:cd26:8b02
205.38.139.3 0:0:0:0:0:ffff:cd26:8b03
205.38.139.4 0:0:0:0:0:ffff:cd26:8b04
205.38.139.5 0:0:0:0:0:ffff:cd26:8b05
205.38.139.6 0:0:0:0:0:ffff:cd26:8b06
205.38.139.7 0:0:0:0:0:ffff:cd26:8b07
205.38.139.8 0:0:0:0:0:ffff:cd26:8b08
205.38.139.9 0:0:0:0:0:ffff:cd26:8b09
205.38.139.10 0:0:0:0:0:ffff:cd26:8b0a
205.38.139.11 0:0:0:0:0:ffff:cd26:8b0b
205.38.139.12 0:0:0:0:0:ffff:cd26:8b0c
205.38.139.13 0:0:0:0:0:ffff:cd26:8b0d
205.38.139.14 0:0:0:0:0:ffff:cd26:8b0e
205.38.139.15 0:0:0:0:0:ffff:cd26:8b0f
205.38.139.16 0:0:0:0:0:ffff:cd26:8b10
205.38.139.17 0:0:0:0:0:ffff:cd26:8b11
205.38.139.18 0:0:0:0:0:ffff:cd26:8b12
205.38.139.19 0:0:0:0:0:ffff:cd26:8b13
205.38.139.20 0:0:0:0:0:ffff:cd26:8b14
205.38.139.21 0:0:0:0:0:ffff:cd26:8b15
205.38.139.22 0:0:0:0:0:ffff:cd26:8b16
205.38.139.23 0:0:0:0:0:ffff:cd26:8b17
205.38.139.24 0:0:0:0:0:ffff:cd26:8b18
205.38.139.25 0:0:0:0:0:ffff:cd26:8b19
205.38.139.26 0:0:0:0:0:ffff:cd26:8b1a
205.38.139.27 0:0:0:0:0:ffff:cd26:8b1b
205.38.139.28 0:0:0:0:0:ffff:cd26:8b1c
205.38.139.29 0:0:0:0:0:ffff:cd26:8b1d
205.38.139.30 0:0:0:0:0:ffff:cd26:8b1e
205.38.139.31 0:0:0:0:0:ffff:cd26:8b1f
205.38.139.32 0:0:0:0:0:ffff:cd26:8b20
205.38.139.33 0:0:0:0:0:ffff:cd26:8b21
205.38.139.34 0:0:0:0:0:ffff:cd26:8b22
205.38.139.35 0:0:0:0:0:ffff:cd26:8b23
205.38.139.36 0:0:0:0:0:ffff:cd26:8b24
205.38.139.37 0:0:0:0:0:ffff:cd26:8b25
205.38.139.38 0:0:0:0:0:ffff:cd26:8b26
205.38.139.39 0:0:0:0:0:ffff:cd26:8b27
205.38.139.40 0:0:0:0:0:ffff:cd26:8b28
205.38.139.41 0:0:0:0:0:ffff:cd26:8b29
205.38.139.42 0:0:0:0:0:ffff:cd26:8b2a
205.38.139.43 0:0:0:0:0:ffff:cd26:8b2b
205.38.139.44 0:0:0:0:0:ffff:cd26:8b2c
205.38.139.45 0:0:0:0:0:ffff:cd26:8b2d
205.38.139.46 0:0:0:0:0:ffff:cd26:8b2e
205.38.139.47 0:0:0:0:0:ffff:cd26:8b2f
205.38.139.48 0:0:0:0:0:ffff:cd26:8b30
205.38.139.49 0:0:0:0:0:ffff:cd26:8b31
205.38.139.50 0:0:0:0:0:ffff:cd26:8b32
205.38.139.51 0:0:0:0:0:ffff:cd26:8b33
205.38.139.52 0:0:0:0:0:ffff:cd26:8b34
205.38.139.53 0:0:0:0:0:ffff:cd26:8b35
205.38.139.54 0:0:0:0:0:ffff:cd26:8b36
205.38.139.55 0:0:0:0:0:ffff:cd26:8b37
205.38.139.56 0:0:0:0:0:ffff:cd26:8b38
205.38.139.57 0:0:0:0:0:ffff:cd26:8b39
205.38.139.58 0:0:0:0:0:ffff:cd26:8b3a
205.38.139.59 0:0:0:0:0:ffff:cd26:8b3b
205.38.139.60 0:0:0:0:0:ffff:cd26:8b3c


205.38.139.61 0:0:0:0:0:ffff:cd26:8b3d
205.38.139.62 0:0:0:0:0:ffff:cd26:8b3e
205.38.139.63 0:0:0:0:0:ffff:cd26:8b3f
205.38.139.64 0:0:0:0:0:ffff:cd26:8b40
205.38.139.65 0:0:0:0:0:ffff:cd26:8b41
205.38.139.66 0:0:0:0:0:ffff:cd26:8b42
205.38.139.67 0:0:0:0:0:ffff:cd26:8b43
205.38.139.68 0:0:0:0:0:ffff:cd26:8b44
205.38.139.69 0:0:0:0:0:ffff:cd26:8b45
205.38.139.70 0:0:0:0:0:ffff:cd26:8b46
205.38.139.71 0:0:0:0:0:ffff:cd26:8b47
205.38.139.72 0:0:0:0:0:ffff:cd26:8b48
205.38.139.73 0:0:0:0:0:ffff:cd26:8b49
205.38.139.74 0:0:0:0:0:ffff:cd26:8b4a
205.38.139.75 0:0:0:0:0:ffff:cd26:8b4b
205.38.139.76 0:0:0:0:0:ffff:cd26:8b4c
205.38.139.77 0:0:0:0:0:ffff:cd26:8b4d
205.38.139.78 0:0:0:0:0:ffff:cd26:8b4e
205.38.139.79 0:0:0:0:0:ffff:cd26:8b4f
205.38.139.80 0:0:0:0:0:ffff:cd26:8b50
205.38.139.81 0:0:0:0:0:ffff:cd26:8b51
205.38.139.82 0:0:0:0:0:ffff:cd26:8b52
205.38.139.83 0:0:0:0:0:ffff:cd26:8b53
205.38.139.84 0:0:0:0:0:ffff:cd26:8b54
205.38.139.85 0:0:0:0:0:ffff:cd26:8b55
205.38.139.86 0:0:0:0:0:ffff:cd26:8b56
205.38.139.87 0:0:0:0:0:ffff:cd26:8b57
205.38.139.88 0:0:0:0:0:ffff:cd26:8b58
205.38.139.89 0:0:0:0:0:ffff:cd26:8b59
205.38.139.90 0:0:0:0:0:ffff:cd26:8b5a
205.38.139.91 0:0:0:0:0:ffff:cd26:8b5b
205.38.139.92 0:0:0:0:0:ffff:cd26:8b5c
205.38.139.93 0:0:0:0:0:ffff:cd26:8b5d
205.38.139.94 0:0:0:0:0:ffff:cd26:8b5e
205.38.139.95 0:0:0:0:0:ffff:cd26:8b5f
205.38.139.96 0:0:0:0:0:ffff:cd26:8b60
205.38.139.97 0:0:0:0:0:ffff:cd26:8b61
205.38.139.98 0:0:0:0:0:ffff:cd26:8b62
205.38.139.99 0:0:0:0:0:ffff:cd26:8b63
205.38.139.100 0:0:0:0:0:ffff:cd26:8b64
205.38.139.101 0:0:0:0:0:ffff:cd26:8b65
205.38.139.102 0:0:0:0:0:ffff:cd26:8b66
205.38.139.103 0:0:0:0:0:ffff:cd26:8b67
205.38.139.104 0:0:0:0:0:ffff:cd26:8b68
205.38.139.105 0:0:0:0:0:ffff:cd26:8b69
205.38.139.106 0:0:0:0:0:ffff:cd26:8b6a
205.38.139.107 0:0:0:0:0:ffff:cd26:8b6b
205.38.139.108 0:0:0:0:0:ffff:cd26:8b6c
205.38.139.109 0:0:0:0:0:ffff:cd26:8b6d
205.38.139.110 0:0:0:0:0:ffff:cd26:8b6e
205.38.139.111 0:0:0:0:0:ffff:cd26:8b6f
205.38.139.112 0:0:0:0:0:ffff:cd26:8b70
205.38.139.113 0:0:0:0:0:ffff:cd26:8b71
205.38.139.114 0:0:0:0:0:ffff:cd26:8b72
205.38.139.115 0:0:0:0:0:ffff:cd26:8b73
205.38.139.116 0:0:0:0:0:ffff:cd26:8b74
205.38.139.117 0:0:0:0:0:ffff:cd26:8b75
205.38.139.118 0:0:0:0:0:ffff:cd26:8b76
205.38.139.119 0:0:0:0:0:ffff:cd26:8b77
205.38.139.120 0:0:0:0:0:ffff:cd26:8b78


205.38.139.121 0:0:0:0:0:ffff:cd26:8b79
205.38.139.122 0:0:0:0:0:ffff:cd26:8b7a
205.38.139.123 0:0:0:0:0:ffff:cd26:8b7b
205.38.139.124 0:0:0:0:0:ffff:cd26:8b7c
205.38.139.125 0:0:0:0:0:ffff:cd26:8b7d
205.38.139.126 0:0:0:0:0:ffff:cd26:8b7e
205.38.139.127 0:0:0:0:0:ffff:cd26:8b7f
205.38.139.128 0:0:0:0:0:ffff:cd26:8b80
205.38.139.129 0:0:0:0:0:ffff:cd26:8b81
205.38.139.130 0:0:0:0:0:ffff:cd26:8b82
205.38.139.131 0:0:0:0:0:ffff:cd26:8b83
205.38.139.132 0:0:0:0:0:ffff:cd26:8b84
205.38.139.133 0:0:0:0:0:ffff:cd26:8b85
205.38.139.134 0:0:0:0:0:ffff:cd26:8b86
205.38.139.135 0:0:0:0:0:ffff:cd26:8b87
205.38.139.136 0:0:0:0:0:ffff:cd26:8b88
205.38.139.137 0:0:0:0:0:ffff:cd26:8b89
205.38.139.138 0:0:0:0:0:ffff:cd26:8b8a
205.38.139.139 0:0:0:0:0:ffff:cd26:8b8b
205.38.139.140 0:0:0:0:0:ffff:cd26:8b8c
205.38.139.141 0:0:0:0:0:ffff:cd26:8b8d
205.38.139.142 0:0:0:0:0:ffff:cd26:8b8e
205.38.139.143 0:0:0:0:0:ffff:cd26:8b8f
205.38.139.144 0:0:0:0:0:ffff:cd26:8b90
205.38.139.145 0:0:0:0:0:ffff:cd26:8b91
205.38.139.146 0:0:0:0:0:ffff:cd26:8b92
205.38.139.147 0:0:0:0:0:ffff:cd26:8b93
205.38.139.148 0:0:0:0:0:ffff:cd26:8b94
205.38.139.149 0:0:0:0:0:ffff:cd26:8b95
205.38.139.150 0:0:0:0:0:ffff:cd26:8b96
205.38.139.151 0:0:0:0:0:ffff:cd26:8b97
205.38.139.152 0:0:0:0:0:ffff:cd26:8b98
205.38.139.153 0:0:0:0:0:ffff:cd26:8b99
205.38.139.154 0:0:0:0:0:ffff:cd26:8b9a
205.38.139.155 0:0:0:0:0:ffff:cd26:8b9b
205.38.139.156 0:0:0:0:0:ffff:cd26:8b9c
205.38.139.157 0:0:0:0:0:ffff:cd26:8b9d
205.38.139.158 0:0:0:0:0:ffff:cd26:8b9e
205.38.139.159 0:0:0:0:0:ffff:cd26:8b9f
205.38.139.160 0:0:0:0:0:ffff:cd26:8ba0
205.38.139.161 0:0:0:0:0:ffff:cd26:8ba1
205.38.139.162 0:0:0:0:0:ffff:cd26:8ba2
205.38.139.163 0:0:0:0:0:ffff:cd26:8ba3
205.38.139.164 0:0:0:0:0:ffff:cd26:8ba4
205.38.139.165 0:0:0:0:0:ffff:cd26:8ba5
205.38.139.166 0:0:0:0:0:ffff:cd26:8ba6
205.38.139.167 0:0:0:0:0:ffff:cd26:8ba7
205.38.139.168 0:0:0:0:0:ffff:cd26:8ba8
205.38.139.169 0:0:0:0:0:ffff:cd26:8ba9
205.38.139.170 0:0:0:0:0:ffff:cd26:8baa
205.38.139.171 0:0:0:0:0:ffff:cd26:8bab
205.38.139.172 0:0:0:0:0:ffff:cd26:8bac
205.38.139.173 0:0:0:0:0:ffff:cd26:8bad
205.38.139.174 0:0:0:0:0:ffff:cd26:8bae
205.38.139.175 0:0:0:0:0:ffff:cd26:8baf
205.38.139.176 0:0:0:0:0:ffff:cd26:8bb0
205.38.139.177 0:0:0:0:0:ffff:cd26:8bb1
205.38.139.178 0:0:0:0:0:ffff:cd26:8bb2
205.38.139.179 0:0:0:0:0:ffff:cd26:8bb3
205.38.139.180 0:0:0:0:0:ffff:cd26:8bb4


205.38.139.181 0:0:0:0:0:ffff:cd26:8bb5
205.38.139.182 0:0:0:0:0:ffff:cd26:8bb6
205.38.139.183 0:0:0:0:0:ffff:cd26:8bb7
205.38.139.184 0:0:0:0:0:ffff:cd26:8bb8
205.38.139.185 0:0:0:0:0:ffff:cd26:8bb9
205.38.139.186 0:0:0:0:0:ffff:cd26:8bba
205.38.139.187 0:0:0:0:0:ffff:cd26:8bbb
205.38.139.188 0:0:0:0:0:ffff:cd26:8bbc
205.38.139.189 0:0:0:0:0:ffff:cd26:8bbd
205.38.139.190 0:0:0:0:0:ffff:cd26:8bbe
205.38.139.191 0:0:0:0:0:ffff:cd26:8bbf
205.38.139.192 0:0:0:0:0:ffff:cd26:8bc0
205.38.139.193 0:0:0:0:0:ffff:cd26:8bc1
205.38.139.194 0:0:0:0:0:ffff:cd26:8bc2
205.38.139.195 0:0:0:0:0:ffff:cd26:8bc3
205.38.139.196 0:0:0:0:0:ffff:cd26:8bc4
205.38.139.197 0:0:0:0:0:ffff:cd26:8bc5
205.38.139.198 0:0:0:0:0:ffff:cd26:8bc6
205.38.139.199 0:0:0:0:0:ffff:cd26:8bc7
205.38.139.200 0:0:0:0:0:ffff:cd26:8bc8
205.38.139.201 0:0:0:0:0:ffff:cd26:8bc9
205.38.139.202 0:0:0:0:0:ffff:cd26:8bca
205.38.139.203 0:0:0:0:0:ffff:cd26:8bcb
205.38.139.204 0:0:0:0:0:ffff:cd26:8bcc
205.38.139.205 0:0:0:0:0:ffff:cd26:8bcd
205.38.139.206 0:0:0:0:0:ffff:cd26:8bce
205.38.139.207 0:0:0:0:0:ffff:cd26:8bcf
205.38.139.208 0:0:0:0:0:ffff:cd26:8bd0
205.38.139.209 0:0:0:0:0:ffff:cd26:8bd1
205.38.139.210 0:0:0:0:0:ffff:cd26:8bd2
205.38.139.211 0:0:0:0:0:ffff:cd26:8bd3
205.38.139.212 0:0:0:0:0:ffff:cd26:8bd4
205.38.139.213 0:0:0:0:0:ffff:cd26:8bd5
205.38.139.214 0:0:0:0:0:ffff:cd26:8bd6
205.38.139.215 0:0:0:0:0:ffff:cd26:8bd7
205.38.139.216 0:0:0:0:0:ffff:cd26:8bd8
205.38.139.217 0:0:0:0:0:ffff:cd26:8bd9
205.38.139.218 0:0:0:0:0:ffff:cd26:8bda
205.38.139.219 0:0:0:0:0:ffff:cd26:8bdb
205.38.139.220 0:0:0:0:0:ffff:cd26:8bdc
205.38.139.221 0:0:0:0:0:ffff:cd26:8bdd
205.38.139.222 0:0:0:0:0:ffff:cd26:8bde
205.38.139.223 0:0:0:0:0:ffff:cd26:8bdf
205.38.139.224 0:0:0:0:0:ffff:cd26:8be0
205.38.139.225 0:0:0:0:0:ffff:cd26:8be1
205.38.139.226 0:0:0:0:0:ffff:cd26:8be2
205.38.139.227 0:0:0:0:0:ffff:cd26:8be3
205.38.139.228 0:0:0:0:0:ffff:cd26:8be4
205.38.139.229 0:0:0:0:0:ffff:cd26:8be5
205.38.139.230 0:0:0:0:0:ffff:cd26:8be6
205.38.139.231 0:0:0:0:0:ffff:cd26:8be7
205.38.139.232 0:0:0:0:0:ffff:cd26:8be8
205.38.139.233 0:0:0:0:0:ffff:cd26:8be9
205.38.139.234 0:0:0:0:0:ffff:cd26:8bea
205.38.139.235 0:0:0:0:0:ffff:cd26:8beb
205.38.139.236 0:0:0:0:0:ffff:cd26:8bec
205.38.139.237 0:0:0:0:0:ffff:cd26:8bed
205.38.139.238 0:0:0:0:0:ffff:cd26:8bee
205.38.139.239 0:0:0:0:0:ffff:cd26:8bef
205.38.139.240 0:0:0:0:0:ffff:cd26:8bf0
205.38.139.241 0:0:0:0:0:ffff:cd26:8bf1
205.38.139.242 0:0:0:0:0:ffff:cd26:8bf2
205.38.139.243 0:0:0:0:0:ffff:cd26:8bf3
205.38.139.244 0:0:0:0:0:ffff:cd26:8bf4
205.38.139.245 0:0:0:0:0:ffff:cd26:8bf5
205.38.139.246 0:0:0:0:0:ffff:cd26:8bf6
205.38.139.247 0:0:0:0:0:ffff:cd26:8bf7
205.38.139.248 0:0:0:0:0:ffff:cd26:8bf8
205.38.139.249 0:0:0:0:0:ffff:cd26:8bf9
205.38.139.250 0:0:0:0:0:ffff:cd26:8bfa
205.38.139.251 0:0:0:0:0:ffff:cd26:8bfb
205.38.139.252 0:0:0:0:0:ffff:cd26:8bfc
205.38.139.253 0:0:0:0:0:ffff:cd26:8bfd
205.38.139.254 0:0:0:0:0:ffff:cd26:8bfe
205.38.139.255 0:0:0:0:0:ffff:cd26:8bff


How we got IPv4 subnet masks?

An IPv4 subnet mask consists of 32 bits; it is a sequence of ones (1) followed by a block of zeros (0). The ones indicate bits in the address used for the network prefix and the trailing block of zeros designates that part as being the host identifier.